An annotated checklist of the chaetonotidan Gastrotricha from India Author Chatterjee, Tapas Near Hari Mandir Road, Hirapur, Dhanbad 826001, Jharkhand, India. Author Todaro, M. Antonio 0000-0002-6353-7281 Dipartimento di Scienze della Vita, Università di Modena e Reggio Emilia, via G. Campi 213 / D, I- 41125 Modena, Italy. antonio. todaro @ unimore. it; https: // orcid. org / 0000 - 0002 - 6353 - 7281 antonio.todaro@unimore.it text Zootaxa 2021 2021-09-01 5027 3 332 350 journal article 10.11646/zootaxa.5027.3.2 1175-5326 5449646 FC464127-CED8-4F28-8A50-F8A0BCD08D49 Chaetonotus ( Hystricochaetonotus ) anomalus Brunson, 1950 Records from India . ANDHRA PRADESH : Kalikalur in Krishna District— Dhanapathi (1976) , Rao & Mohan (1987) ; WEST BENGAL : Kolkata (= Calcutta), Howrah— Sharma (1980) ; ODISHA : Cuttak, Sambalpur— Sharma (1987) ; MEGHALAYA : Sharma & Sharma (1990) ; ASSAM : Ghorajan, Kamranga, Urmal, Solmari— Sharma & Sharma (2008) ; GENERAL RECORD : Naidu & Rao (2004) , Purushothaman (2017) . Habitat (as in Indian records). Freshwater; among aquatic algae and angiosperms. Distribution . USA , tentatively in Europe ( Poland , see Kisielewski 1981 ) and India . Remarks . A key character of this species is the presence of seven, double-barbed spines (i.e., bear an additional notch), which originate at mid-trunk and project far beyond the other trunk spines. In India the species has been found three times, by Dhanapati (1976), Sharma (1980) and Sharma & Sharma (2008) . The specimens reported in the last two occasions bear in full the key character of the species while the presence of the species in Andhra Pradesh by Dhanapati (1976) should be reassessed, because the found specimens depart somewhat from the original description (e.g., they are smaller in size and their spines are shorter).